Railway signaling means.



BJ J. MARSHALL WLR. PBNMAN.

RAILWAY SIGBALING KEANE. unicum! nmjm un.1s,'xm.

Patented Apr. 6,1909.

E. J. MARSHALL t W. H. PENMAN.

' RAILWAY SIGNALING MEANS.. Annunci Hmm .um` 1s1 oo`a.

. Patentd Apr. 6, 199.`

'8 SHEETS-SHEET l.

n. J. 'MARSHALL' a: w. H. PBNMAN.

RAILWAY SIGNALING MEANS. nrLIoAg-ml min'b nl. 1s. 1m.

Patented Apr. 6, 190s.

' BREVES-@BERT 3.-

n. J. MARSHALL I w; H. PENMAN.

RAILWAY SIGNALING MEANS.

unicum! runnin. 1a, mou.

Patented Apr. 6, 1909.

UNITED; STATES IPATENT oEE'icE.

RALPH JOSEPH MARSHALL, OF NEWCASTLE-UPON-TYNE, AND WILLIAM HENRY PENMAN, OF GATESHEAD-UPON-TYNE, ENGLAND.

'RAILWAY BIGNALING MEANS.

Patented April 6, 1909.

Application tiled April 18, 1908. Serial No. 421ML To all whom 'it may concern' Be it known that we, RALPH Josiirn MARSHALL and WiLLrAM HENRY PENMAN subjects of the King of Great Britain an Ireland, residing, respectively, at Newcastleupon-Tyne and Gateshead-u on-Tyne, in the county of Durham, Englan have invented Improvements in Railway Signaling Means, of which the following is a specification.

This invention relates to means 'for indi-, eating to the driver or guards of a train, or to 'both, the condition of the various line signals which are passed; being more especially intended for use in foggy-weather.

As is now well known various schemes have been devised embodying track devices operated in conjunction with the signals and adapted, when set for the urpose, to actuate devices that are carried y the locomotive or other vehicle, thereby directly or indirectly operating a warning device or devices, but none of these arrangements have been universally adopted for various reasons.

Now the object of the. present invention is toprovide arrangementsof the kind referre to embodying elements of a very simple character not liable to easy derangement. and which will o erate to maintain the warning given unt such time as it is ositively removed by the individual to w om it is given and which will operate equally well irrespective of the direction of travel of the locomotive or train or of the end of the locomotive or vehicle which is running foremost.

According to the invention an electric bell is utilized to indicate danger and a. separate clcctric bell to indicate line clear; each bell is operated by a separate track device, the electric circuit for each of such bells being closed by :i separate switch the handle of which vwhen moved to circuit closing position remains there until manually moved to open the. circuit. ln order, however, that the invention may be more readily understood, it will now be described with reference to the accompanying drawings, whereof- Figure 1 is a sectional side elevation, for the most part diagrammatic, of a locomotive showing the improved arrangement applied thereto. Fig. 2 is a rear elevation o sanic.` Fins. 3, 4, 5 and 6 are views to a larger --scale of details embodied in Figs. 1 and '2. Figs. 7, 8 and 9 are diagrammatic views illustrative of modifications.

the

As shown in Figs. 1 to 6 a track device is employed comprising a rock shaft a dis osed transverselyof the tracl-I and mountedin earings b, two of which are shown in Fig. 2 as sup orted by the rails while a third is carrie from the sleepers by a bearing block c. Upon this rock shaft a are secured two seg- I nentall track devices d, e, one disposed between the rails and the other outside the rails. These track devices d, e are angularly dislaced upon the shaft a so that while one is in the operative position the other is in the inoperative position. The shaft a is shown as provided with a balance weight which is necessary to return the parts to t e normal osition illustrated when displaced by flexile connections and may be advantageously adopted even when the displacement is eifected by rigid connections such as the lever g and rod h shown. i is a bracket attached to the bearing block c to act as a stop against which the track device e abats. il! ithin the cab, at the right hand side of the locomotive, is arranged an 'electric bell d' battery l: and switch, comprising a live stu m, a dead stud 1i and a pivoted switch arm o. This bell is intended to give the danger signal and a similar bell g, batter and switch is arranged in thecab, at the le t hand side of the locomotive to give the line clear signal'. The operation of the switch may be variously effected. For example the switch arm o pertaining to the danger signal bell i is formed with a crank arm p connected by a rod q and lever r to a rod s movable vertically within'a guide carried b a bracket t, this arrangement being ossib y desirable in sonic cases where other ttings may revent the said bracket being arranged to t ic outside of the engine framing such as is shown at the left hand side of Fig. 2, where the rod s is extended fordirect connection to the crank arm p of the switch of the lino clear signal. To facilitate the raising of thc rod s by its corres ending track device a roller s is fitted to Sie extreinityiofthe said rod.

Normally thc switch arm o ci each bell is in engagement with the dead stud n as seen in Fig. 1: the parts being' retained in such condition bv the action ol" a spring o Fig. 3 secured within a guide oz for the switch iii-xn o and acting upon such arm. As the train proceeds, either-a line clear or danger track device. will be encountered by a corresponding rod s to move the switch arm o on to the iooV los)

l i f live stud m, Fig` 2 representing the danger signal as being thus influenced. The spring then again acts, to hold the arts in the circuit-closed iosition until the diiiver moves 5 thi` arm o haelt on to the dead stud n to reinove the warning given.

With this described arrangement the iacchanisin will operate. without. alteration when a train or locomotive is traveling in reverse directions on the saine track. lf, however,

it be. desired to run the engine tender foremost it will he necessary to modify the arrangement. For example, this may be effected by duplicating the track devices (l and e unless it is permissible to arrange a.

central device between the rails for one signal bell iii which case itwill only be necessary to duplicate thc device for the other signal bell so that both devices are either between or outside of the rails in a manner which will he readily understood without illustration. Or the equivalent effect may he secured, when the track devices occupy the saine relative positions with respect to the rails, by pro viding two switches such as are shown at w in the. diagram Fig. 9 whereby the danger signal hell j can be intcrchanged with the line clear signalhell jl. V ith the switch arms w in the positions indicated by full lines, thc belts are interi-hanged but by moving the arnis w to the position indicated by dotted lines cach bell will be operated by its correspending switch arni o. In some instances, both bells j j may be arranged to be connceted to act as danger signal bells.

be obvious, such parts as require insuiation may be insulated in any appropriate fashion. A modilication, suitable also for traveling in opposite directions, is shown in Fig. 7 where the switch arm o moves in o iposite directions in' accordance with reversal in direction -oi' traveljof the locomotive. ln this case theriifdi-` 'digi live studs mv are employed with asingle intermediate dead stud n upon which a switch arin o normally beurs. Both 'Y of the st ids m are connected to one pole of the battery lc. 1f desired in lieu of track devices such :is il and e simple tripping arms d, e as shown in Fig. S may be adopted, thesaid .Soarns -heing furnished with strengthening .iwehsdc'- 'l'he track devices iii-.ty he actu "*iitod independent ly of the line signals or conjointly therewith, in which case the connec- V tions leading from the semaphore and track devices will he united to the means operated from the signal cahin. 'l he saine or a similar arrangement to any ol'- the foregoing is or 'm'ziy he fitted to the guards van or each gi'izirds van, in which case the warning autonia icall)r a'Yordcd is removed h v the guard or each gufai'd.A i

hat we `claim is lv.liiiil`w^a"\ signaling apparatus, comprising tivftsparateelectric indicators on the railway lrtvlicle, separatel circuitclosing J. ,il

As will l switches for said indicators, switch operating n i means extending toward the track and connectcd to the switches, separate track devices arranged to be operatedsiinultaneonsly i, to alternatively actuate said switch operatg ing means, means l'or simultaneously main-V E taining the switch which is closed in closed i position', and prevent-ing return of the switch 5 operating means, and hand actuated means adapted to positively return the switch and switch operating means to normal switch open position.

2. Railway signaling apparatus, compris- Aing two separate electric indicators on the railway vehicle, separate circuit closing switches for said indicators, switch operating means extending toward thctraek, separate track ously so that rwhile one. is in operativeposition the other is' in inoperative position to alternatively actuate. the switch operatin means, and means for interchanging sai indicators.

3. Railway signaiing apparatus, comprising two separate elect-ric indicators on the f railwaii vehicle, separate circuit closing switches foi' said indicators, switch operating means extending toward the track, separate track devices arranged to be operated simultaneously to alternatively actuate. said switch operating means, means for intert hanging such indicators and means for maintaining the switch which is closed in closed position until opened by hand.

l two separate elcctii'c indicators on the raill way vehicle, separate sources of electricity l therefor, separate circuits connecting` said iindicators with the sources of electricity, l separate switches in said circuit, switch opcrating means extending toward the traer, l separate track devices arranged to be operi ated simultaneously so that while one is in operative position the. other is in inoperative position to alternatively actuate the switch operating means, and means for interchanging said indicators.

5. Railway signaling apparatus, comprising two separateelectric indicators on the vehicle, a separate battery and switch for each such indicator, switch operating .nieiins' extending toward the track, connected to and iiiovahle with the said switch, means for lholding the switch operating means and switch in iliierent positions after being moved, a shaft mounted on the track transvera-ly thereof, contact devices angnlarly displaced on said'shaft. means for rocking the shaft to move one of the contact devices into operative posit-imi with respect to one of the switch operating means and simultaneonslj.' inove the other contact' device into linopcrative position t other switch operating means, and manually l actuated means for positively returning the 4. Railway signaling apparatus comprising i devices arranged to be operated simultanewith respect to the.

switch :md Switch epm-ating means tn normal switi-h open position.

(i. Railway signaiing apparaius, emuprisingr tva separate elm-tri(- indieami# on the I'ailwa)v vehicle, Separate 'irvuil closing l swilehas im' said iudieatui', swieh upelaiing means extending toward the frank, opal-ate track (lf-vives arranged 1n he operated simultaneously to alternatively aemate said switch operating means, means fur interehanging such indieatm's and means 'foriy maintaining the switch which is closed iu Clnsvd pusit'inn until opened hy hand.

7. Railway 'signaiing apparatus, comprisin;r two Separate electric indiealurs mi ihc Ychivle, a. scpalme elw-trie liattexjf and circuit [er varh indieatnr, a switeh am: nm'- mullyen-acting with a had sind r-enlrnllyI dibposed between two live studs, cranked conneetiuns unached tn the switeh arm :md i

extending toward the trau-,ka shalt mountcd on the trank transversely thereof, Contact levieas al'igularly, displaced m1 said shalt and means l'm rocking the shalt tu move ene of the Contact. devices into operative position and the other into inoperative position se that ille cranked connections will be actuated by thc device which is in operative position relatively thereto to move the switch arm from the dead stud tu une i.- the live studs depending Vupon the direction ol' travel ol' the vehicle.

' Signed at. Newcastle-u ifm-Tyne, England,

E this seventh day of Apri lDOS.

RALPH JOSEPH MARSHALL. WILLIAM HENRY PCNMAN.

` 4\\"it,nesses:

T. C. GossEKF., ISAAC Boum?. 

